Abstract:
THE PRESENT IVENTION RELATES TO THERMOPLASTIC MOULDING COMPOSITIONS, CONSISTING OF TWO COMPONENTS IN A DETERMINED MIXING RATIO, ONE COMPONENT BEING POLYETHYLENE HAVING A MELT INDEX I2 (AT 190*C.) WITHIN THE RANGE OF FROM 0.4 TO 80 AND THE OTHER COMPONENT BEING A SEQUENCED COPOLYMER OF PROPYLENE AND ETHYLENE HAVING A MELT INDEX I10 (AT 190*C.) WITHIN THE RANGE OF FROM 0.5 TO 60. FURTHERMORE, THE PRESENT INVENTION PROVIDES A PROCESS FOR THE MANUFACTURE OF THESE MOULDING COMPOSITIONS. THE MIXTURES IN ACCORDANCE WITH THE INVENTION CAN BE PROCESSED TO SHAPED ARTICLES WHICH ARE DISTINGUISHED BY AN IMPROVED IMPACT STRENGTH AT LOW TEMPERATURES AND AN IMPROVE TRANSPARENCY, WHILE HAVING SUBSTANTIALLY THE SAME HARDNESS.
Abstract:
Process for the recovery of a manganese acetate catalyst, used in the preparation of acetic acid by oxydation of acetaldehyde, through extraction of the residue occurring in the distillative acetic acid working-up with water in the presence of organic solvent immiscible with water.
Abstract:
PROCESS FOR THE MANUFACTURE OF ACETIC ACID of the disclosure: Acetic acid is produced by oxidizing acetaldehyde at elevated temperature in the liquid phase using oxygen or gases containing oxygen in the presence of one or more heavy metal compounds as the catalyst, and adding to the reaction mixture at the start of the addition of oxygen one or more organic peroxides which under the reaction conditions decompose, with a half-life up to 350 minutes, into free radicals in order to initiate the reaction.
Abstract:
PROCESS FOR PREPARING ACETIC ACID of the disclosure: Process for preparing acetic acid by oxidation of acetaldehyde with oxygen or oxygen containing gases in the presence of a catalyst based on manganese acetate, wherein the crude acetic acid and the gases formed, still containing acetalbehyde, are submitted to an after oxidation, the low-boil-ing substances are distilled off and the residue is reused as catalyst.
Abstract:
PROCESS FOR THE PREPARATION OF PRACTICALLY FORMIC ACID-FREE ACETIC ACID of the disclosure: A process is provided for the preparation of practically formic acid-free acetic acid by oxidation of acetaldehyde in the liquid phase with oxygen or oxygen containing gases in the presence of mixtures of cobalt, nickel and manganese salts as catalysts.
Abstract:
Process for the recovery of a manganese acetate catalyst, used in the preparation of acetic acid by oxydation of acetaldehyde, through extraction of the residue occurring in the distillative acetic acid working-up with water in the presence of organic solvent immiscible with water.